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Insider Filings - SCIAMMAS MAURICE
Last Updated 
25-Nov-09
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SCIAMMAS MAURICE: Declared Holdings
Company/RelationshipReportedShares  Ownership
Monolithic Power Systems, Inc.
Officer
NasdaqGS:MPWR
(historical quotes, profile, other insiders) 		26-Aug-09
20-Aug-09		44,491
   24,671
69,162		  Direct
  Indirect  
  Total

Insider & restricted shareholder transactions reported over the last two years
DateSharesStockTransaction
26-Aug-09 12,790MPWR Sale at $23.18 per share.
(Proceeds of $296,472)
20-Aug-09 *25,000MPWR Sale at $23.05 per share.
(Proceeds of $576,250)
6-Aug-09 8,007MPWR Sale at $21.96 per share.
(Proceeds of $175,833)
4-Aug-09 1,724MPWR Disposition (Non Open Market) at $22.75 per share.
(Value of $39,221)
15-May-09 *24,613MPWR Sale at $18.20 - $18.5 per share.
(Proceeds of about $452,000)
15-May-09 *10,387MPWR Sale at $18.51 - $18.66 per share.
(Proceeds of about $193,000)
17-Feb-09 1,017MPWR Acquisition (Non Open Market) at $11.14 per share.
(Value of $11,329)
2-Feb-09 1,094MPWR Automatic Sale at $11.82 per share.
(Proceeds of $12,931)
27-Oct-08 4,493MPWR Automatic Sale at $14.10 per share.
(Proceeds of $63,351)
11-Aug-08 *25,000MPWR Sale at $28.08 - $28.32 per share.
(Proceeds of about $705,000)
7-Aug-08 20,000MPWR Option Exercise at $1.20 per share.
(Cost of $24,000)
7-Aug-08 20,000MPWR Automatic Sale at $26 - $26.14 per share.
(Proceeds of about $521,000)
5-Aug-08 3,051MPWR Automatic Sale at $25.12 per share.
(Proceeds of $76,641)
4-Aug-08 1,699MPWR Automatic Sale at $25.14 per share.
(Proceeds of $42,712)
21-May-08 5,854MPWR Sale at $24.54 - $24.63 per share.
(Proceeds of about $144,000)
21-May-08 15,000MPWR Option Exercise at $9.32 per share.
(Cost of $139,800)
21-May-08 15,000MPWR Sale at $24.54 per share.
(Proceeds of $368,100)
16-May-08 20,000MPWR Sale at $24.90 - $25.05 per share.
(Proceeds of about $500,000)
19-Feb-08 2,708MPWR Disposition (Non Open Market) at $16.27 per share.
(Value of $44,059)
8-Feb-08 10,000MPWR Acquisition (Non Open Market) at $0 per share.
    * Indicates that some (or all) shares are held indirectly (e.g. in a trust, by a spouse, etc.)

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